In the latest arrest, a narcotics enforcement team from the Allegheny County District Attorney's Office was informed that the drug was being sold out of the McDonald's location.

"The way that the deals would happen is that the customer looking for heroin was instructed to go through the drive-thru and say, 'I'd like to order a toy,' " District Attorney Office Spokesman Mike Manko said. "The customer would then be told to proceed to the first window where they would be handed a Happy Meal box containing heroin."

Dennis is awaiting arraignment in the Allegheny County Jail on possession of an illegal substance, possession with intent to deliver and delivery charges.

On Jan. 14, police arrested Theodore Levon Upshaw, 28, after receiving a tip he was selling heroin out of the McDonald's in Murrysville, Pa., just east of Pittsburgh.

The Associated Press noted that authorities do not believe the heroin recovered in the latest arrest was connected to the fentanyl-laced heroin linked to 22 overdose deaths in southwestern Pennsylvania.

"We are working with the Allegheny County Police Department, the Pittsburgh Police, and their counterparts in the region to get this deadly mix of heroin off the streets of Western Pennsylvania, and to arrest and prosecute anyone caught selling, distributing, and producing these drugs," Pennsylvania Attorney General Kathleen Kane said in a statement.